As E-Scooters Roll Into American Cities, So Do Safety Concerns

Fishermen in Papua New Guinea, living on their boats, wait for the tide to change before going out to fish. Tuberculosis is a major health threat in the Pacific Ocean nation.
Jason South/The AGE/Fairfax Media via Getty Images
hide caption

Anita Alvarez and Mariya Koroleva compete in the women's duets synchronized swimming technical routine preliminary on Monday in Rio de Janeiro. Koroleva has suffered several concussions over the years.
Al Bello/Getty Images
hide caption

Inglewood High School cheerleaders perform in front of the Space Shuttle Endeavour as it is transported through the streets of Inglewood and Los Angeles on October 13.
ROBYN BECK/AFP/Getty Images
hide caption